Pre-Freeze and Post-Thaw Scripts

If you plan to back up VMs running applications that do not support VSS, you can specify what scripts Veeam Backup & Replication must use to quiesce the VM. The pre-freeze script quiesces the VM file system and application data to bring the VM to a consistent state before Veeam Backup & Replication triggers a VM snapshot. After the VM snapshot is created, the post-thaw script brings the VM and applications to their initial state.

To specify pre-freeze and post-thaw scripts for the job:

At the Guest Processing step, click Applications.

In the displayed list, select the VM and click Edit.

Click the Scripts tab.

In the Script processing mode section, specify the scenario for scripts execution:

If you have added to the job a VM container with Microsoft Windows and Linux VMs, you can select to execute both Microsoft Windows and Linux scripts for the VM container. When the job starts, Veeam Backup & Replication will automatically determine what OS type is installed on the VM and use corresponding scripts to quiesce this VM.

Tip:

Beside pre-freeze and post-thaw scripts for VM quiescence, you can instruct Veeam Backup & Replication to run custom scripts before the job starts and after the job completes. For more information, see Script Settings.